Comments (5)
Coder-Yu
commented on July 20, 2024
好的，我会找时间看下，如果是我弄错了会修改的，谢谢反馈。
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flyxu
commented on July 20, 2024
还有个bug，在qmath.py文件下pearson_sp这个函数第62行，return语句需要向前移动一格。
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Coder-Yu
commented on July 20, 2024
你好，我刚确认了一下，这个公式是我自己推导的。对比了一下nju的那篇文章，似乎是一致的？可能是我没有看仔细，你可以指出是哪个地方不一致吗？一般公式要是推导错误的话，运算时都是会溢出的。实测这个方法是可以收敛的。qmath的bug我已经修复了，谢谢。
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flyxu
commented on July 20, 2024
主要是对U的求导那块，我看文章里给的迭代公式是按照我上面的写法，对于Ui，公式中有两项，分别代表Ui信任的朋友和信任Ui的朋友，也就是一个代表Ui的入度，一个代表出度，我看您只是计算了UI的出度，然后分别对Ui和Uk更新，这儿不知道是不是等价，所以这儿有点疑问。
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Coder-Yu
commented on July 20, 2024
文章里给的是批梯度优化的目标函数，我用的是SGD的，是等价的。
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Related Issues (20)
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